A rare series of earthquakes in northern Texas has residents asking if oil and gas activities are responsible for the shaking, which has left people rattled but did not cause significant damage or injuries. National Geographic News, Jan 7, 2015
A rare series of earthquakes in northern Texas has residents asking if oil and gas activities are responsible for the shaking, which has left people rattled but did not cause significant damage or injuries. National Geographic News, Jan 7, 2015